Vascular Prosthetic Delivery Device And Method Of Use
First Claim
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1. A delivery device, comprising:
- a) a guidewire catheter having a proximal end and a distal end; and
b) a delivery assembly extending about the guidewire catheter, including;
i) a handle body, having a major longitudinal axis, a proximal end and a distal end,ii) a delivery catheter having a distal end extending from within the distal end of the handle body and about the guidewire catheter,iii) a push rod extending about the guidewire catheter and within the delivery catheter, the push rod being fixed to the guidewire catheter at the proximal end of the guidewire catheter proximal to the handle body,iv) a proximal handle extending about the handle body and axially fixed to the delivery catheter, the proximal handle being selectively fixed to the push rod, wherein the proximal handle is rotatable about the handle body and rotation of the proximal handle about the handle body translates to longitudinal movement of the delivery catheter and, selectively, of the push rod relative to the handle body, andv) a locking mechanism at the handle body that selectively engages the proximal handle with the push rod.
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Abstract
A delivery device includes a guidewire catheter and a delivery assembly extending about the guidewire catheter. The delivery assembly includes a locking mechanism that selectively engages a proximal handle of the delivery assembly with a push rod to which a vascular prosthesis is directly or indirectly attached. When an actuator selectively disengages the proximal handle from the handle body, rotation of the proximal handle is independent of longitudinal movement of the vascular prosthesis relative to the handle body, whereby the proximal handle can be moved along the handle body with rotation.
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Citations
30 Claims
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1. A delivery device, comprising:
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a) a guidewire catheter having a proximal end and a distal end; and b) a delivery assembly extending about the guidewire catheter, including; i) a handle body, having a major longitudinal axis, a proximal end and a distal end, ii) a delivery catheter having a distal end extending from within the distal end of the handle body and about the guidewire catheter, iii) a push rod extending about the guidewire catheter and within the delivery catheter, the push rod being fixed to the guidewire catheter at the proximal end of the guidewire catheter proximal to the handle body, iv) a proximal handle extending about the handle body and axially fixed to the delivery catheter, the proximal handle being selectively fixed to the push rod, wherein the proximal handle is rotatable about the handle body and rotation of the proximal handle about the handle body translates to longitudinal movement of the delivery catheter and, selectively, of the push rod relative to the handle body, and v) a locking mechanism at the handle body that selectively engages the proximal handle with the push rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A delivery device, comprising,
a) a gear rack; -
b) a handle extending about the gear rack and defining teeth at an end of the handle, the handle being rotatable about the gear rack; c) a pinion gear rotatable about an axis that intersects with the axis of rotation of the handle and engages the gear rack; d) a linking gear that selectively rotates with rotation of the pinion gear; e) an actuator that selectively engages the pinion gear with the linking gear; and f) a delivery catheter fixed to the handle, whereby rotation of the handle selectively moves the delivery catheter relative to the gear rack upon engagement of the pinion gear with the linking gear by the actuator.
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18. A method for delivering a vascular prosthesis to a treatment site of a subject, comprising the steps of:
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a) advancing the vascular prosthesis, while the vascular prosthesis is mounted at a proximal end of the prosthesis to an apex delivery device that is fixed to a distal end of a guidewire catheter, to a position distal to a vascular treatment site of the subject; b) rotating a proximal handle in a first direction about a handle body, having a distal end, of a delivery device through which the guidewire catheter extends, the guidewire catheter disposed within a push rod that also extends through the handle body, wherein the guidewire catheter is fixed to the push rod, whereby rotation of the proximal handle causes longitudinal movement of the guidewire catheter and the push rod along the handle body to thereby at least partially advance the prosthesis to the treatment site, the prosthesis being advanced from within an outer catheter extending from a distal end of the handle body and about the prosthesis; c) shifting the position of a first locking component securing the proximal handle to the push rod from a first position to a second position, whereby the first locking component disengages the proximal handle from the push rod and a second locking component engages the push rod with the handle body; d) rotating the proximal handle in a second direction, whereby a delivery catheter having a distal end, the delivery catheter extending about the push rod, is withdrawn along the push rod, and a delivery sheath extending from the distal end of the delivery catheter is at least partially retracted from about the prosthesis; e) releasing the proximal end of the prosthesis from the apex delivery device; f) shifting the second locking component to disengage the push rod from the handle body; and g) withdrawing the push rod and the guidewire catheter from within the prosthesis, thereby delivering the vascular prosthesis to the treatment site. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification